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FINITE-ELEMENT ANALYSIS OF DYNAMIC RESPONSE TO EXCAVATION OF ONE RAILWAY SIDE SLOPE BY BLASTING |
PENG De-hong |
Civil Engineering Department of Yiwu Industry and Business College |
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Abstract The analysis of dynamic response to excavation of side slope by blasting is a complicated issue, the common response spectrum theory for it reveals lots of shortcomings through practice for many years. With development of science and technology, it is necessary to have an improved and feasible way to overcome the shortcomings. The analysis of vibration dynamic response is made by temporal analysis method to excavation of one side slope with high grade by blasting and an introduction in details is given to the generalization method and establishment way for calculation model to side slope in this paper. The result shows it is feasible to make simulation calculation for basting by adopting numerical simulation software with powerful function. Although the max vibration speed of this blasting exceeds the standard and all kinds of stresses are centered at bottom of slope foot, but the values of all stresses are small.
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Received: 21 October 2005
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